Journal
PHYSICAL REVIEW D
Volume 100, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.100.026015
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Funding
- Korean Research Foundation (KRF) through the CERN-Korea Fellowship program
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We derive bounds on the number of Abelian gauge group factors in six-dimensional gravitational theories with minimal supersymmetry and in their F-theoretic realizations. These bounds follow by requiring consistency of certain Bogomol'nyi-Prasad-Sommerfield strings in the spectrum of the theory, as recently proposed in the literature. Under certain assumptions, this approach constrains the number of Abelian gauge group factors in six-dimensional supergravity theories with at least one tensor multiplet to be N <= 20 (or N <= 22 in the absence of charged matter). For any geometric F-theory realization with at least one tensor multiplet, we establish the bound N <= 16 by demanding unitarity of a heterotic solitonic string which exists even in the absence of a perturbative heterotic dual. This result extends to four-dimensional F-theory vacua on any blowup of a rational fibration. Our findings lead to universal bounds on the rank of the Mordell-Weil group of elliptically fibered Calabi-Yau 3-folds.
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